Sprayer with air chamber and transverse tank



Nov. 3, 1925. 1,559,843

. H. E. BRANDT SPRAYER WITH AIR CHAMBER AND TRANSVERSE TANK Filed July1v, 1924 INVEN TOR.

HAS/mr `E. mmpr on a surface, it will remain in Patented Nov. 3, 1925.

UNITED STATE s PATENT lorner..

HENRY E. BRANDT, OF NORTH ST. PAUL, MINNESOTA, ASSIGNOR T0 DOBBINS MANU-FACTURING COMPANY, 0F NORTH ST. PAUL, MINNESOTA, `A CURPORAT'ION 'OFSOUTH DAKOTA.

sraAYnR wir-H AIR CHAMBER AND 'rnANsvEnsn TANK.

Application filed July 17, 1924. Serial No. 726,498.

.To all whom t may concer-n:

Be it known that I, HENRY E. BRANDT, a

citizen of the United States, residing at North Paul, inthe county ofRamsey and State of Minnesota, vhave invented certain new and usefulImprovements in Sprayers with Air Chambers and Trans-V ing liquid and anair pump having a barrel,

which barrel is secured to the tank and extends substantially at rightangles to the tank so that when the sprayer is laid down uprightposition.

It isa further object of the invention to provide such asprayercemprising a liquid containing tank having an air pump connectedthereto and a discharge nozzle carried by said pump, all of said partsbeing arranged'in convenient relation.

tvv is still another object ofthe invention to provide sucha sprayerhaving a simple and efficient discharge nozzle and controlling meanstherefor.v v

These and other objects and advantages of the invention will be fullyset forth in the following description made in connection with theaccompanying drawings in which lili'e reference characters refer to thesaine parts throughout the different views, and in which,

Fig. l is a top plan View of the device;

Fig. 2 is a vertical section taken on the line of Fig. l; shown on anenlarged scale;

, Fig. 3 is a partial vertical section similar to F 2 shown on anenlarged scale; and

Fig'. i is a vertical section on line of rig. Y

Referring to the drawings, the device coinprises a receptacle l ofcylindrical forni having closed ends and being provided .on its upperside with a removable'tilling capi An ali' pump is provided for thesprayer havinga'barrel 3 of cylindrical form, which .arranged to form acompressed air chamber; Thelbarreli barrel has a front portion oisdisposed substantially tangent to the tank 1 and is connected thereto.with the axisof said barrel extending substantiallyv at right y anglesto the axis of said tank. The barrel and tank will be connected rbybeing soldered,`

brazed, or in any other manner. The barrelv 3 has a cup-shaped nipple 3bthreaded into its end and. tightlyv secured therein, the end of saidnipple forming a partition.'extending across said barrel. Said end `hasa centralV aperture therein adaptedto be closed by'a valve 9 normallyheld against said Yend and carried by a narrowplate spring 3d. ySaidplate spring has slots in eachof its ends engaging over lugs or tonguesstruck up from the sides of the nipple 3b, the endsof said strip beingbent substantially at rightangles.

The open end of nipple 3b projects beyond the end of the barrel 3 and isadapted to screwinto the interiorly threaded endpoff .I the frontportion 3a. Barrel 3 has `an out-f wardlyturned flange 3f at its'innerend and front portion 3a has a" similar; outwardly turned Harige 3g atits outer end. A gaslret washery 3e is disposed between the flanges 3fand 3g of barrel 3 and the front portion 3a. The chamber in the frontportion arespectively of the barrel communicates with thek tank l.through an opening la. The main portion of barrel 3 with nipple 3b .canthus. be detached from portion 3a, to afford readyv access to valve 9. Aplunger 5 reciprocates in barrel 3 being yheld on the plunger rod-6v bynuts threaded on the end of said rod and engaging'7 respectively,washers ,l side of said plunger. The said rod 6 eX- tends througlitheouterclosed end ofl barrel.

3 and is provided with an operating handle 8.

A nozzle member is provided comprising a cylindrical-barrel ,10 havingits inner end provided with al central aperture. Said 'barrel has `anopen outer end and is provided with a portion having a bore of .1n--Acreased diameter adjacent said open end and is interiorly threadedadjacent said portion. .1.

Said barrel has a small opening 10b commun i eating with chamber 3a. Acap member il i.

having a flanged 4and closed end l1'F14 is threaded into the `barrel 1Qand said cap forms an annular chamber 1()L1 with the portion of thebarrel 1() having the increased bore, a gaslret 12 being disposedbetween the front end of the barrel 10 and the flange 11, The cap 11formed as a hollow cylindrical member is provided with a small centralaperture 11c through its forward end forming a discharge aperture. Cap11 also has a flattened or grooved portion 11d at one side of itsthreaded exterior adapted to form a passage leading to annular' chamber10a. A plunger member 13 has its forward end disposed in the cap v11 andthe front endk of said plunger forms a valveI cooperating with theaperture 11e. The front end of said plunger is recessed to receive apiece ot leather or-other yielding material 13c yand the edge of saidrecess is spun over on said member 18c to lhold it in place. Saidplunger 13 has its rear portion of reduced diameter and a Washer 1-1surrounds the frontend of said portion 13a and abuts against theshoulder A finger operated lever 18 has an oblong upwardly curved outerend and has upwardly extending substantially parallel ears 18EL at itsforward end. Said ears are apertured to receive a pivot member which maybe in the form of a Cotter pin 19 extending, through'said ears and anaperture in the outer end of portion 13EL of the plunger.

Said lever 18 has an aperture in its lower poi'- tion adjacent its frontend which embraces a pin 2O projecting upwardly from and secured to thetop of barrel 3. A tube 21 is secured in the 'front portion of lthebarrel 10 and communicates with the annular' chamber 101 and extendsdownwardly through the tanlr 1 to a point adjacent the bottom thereof.v

A curved handle 22 is connected at one end to the interior sideo'f tank1 and extends uuwardly and outwardly therefrom'in curved iorm andengaging with its outer flanged end, said handle then curving downwardlyand being secured at its other end to the upper portion of tanlr 1. Saidhandle is formed of a strip of material having,` its side edges curvedsubstantially at right angies. Said handle forms a convenient grip :torholding the sprayer while operating the plunger 6 and also affords albrace and reinforcing means for the barrel. Another strip of material 23'extends upwardly from the front end of tank 1 substantially tan-lgential thereto and is then bent rearwardly at a right angle and securedto the front of barrel portion 3a. I

1n operation, the liquid to be sprayed is placed in the tank 1. rlhe airpump is then operated by graspingl handle Q2, and reciprocating rod 6and handle 8. The air pump is provided with the usual valves and air ispumped by the plunger into the chamber 3a. Check valve 9 permits thisair to enter said chamber but prevents the escape of said air.Airfpressure is thus built up in chamber 3a and in the tanlr 1 on topofthe liouid therein. This air pressure will7 ot course. extend into thebarrel 10 and the cap 11 but no liquid or air can-escape from saidbarrel or nozzle owing to the fact that aperture 11c is closed by valvemember 13G. llhen the desired pressure has been created and it isdesired to spray the liquid, the opcrater presses on the outer end oflever 18 and withdraws the plunger valve 13 from the aperture 11C. Theliquid Vinta-nk 1 is now forcedy upwardly through the tube 21 into theannular chamber '10t and passes rearwardlv through the passage' formedby iortion 11d in can 11 and then passes around the end 01"' cap 11 intothe interior thereol'v around lung-er 13. Air rushes'outwardly into can11 around the end of plunger 123 and the liquid is forcibly sprayedoutwardl;Y through the aperture 11C. rlhe liquidvpassingm around theinner end of cap 11 is thus eihciently brought into the path of the air.The spraying will continue as long as there is pressure in the tank 1and as long as the lever 18 is held in depressed position. As soon aslever 18 is released spring` 17 moves nlunger 18 and the aperture 11c isagain closed by valve 13 and the Vdischarge olf liquid will cease. It issometimes desirable to place the device on end and to pump up )ressurebv handle 8 with rod 6 extending` substantially vertically. rlhe members2 and 23a forni a iirm and convenient support for this operation, andeliminate the' stra-in which would otherwise be placed on the point ofconnection of barrel 3 and tank 1. The device will readily stand erectsupportedon member 9.3 and tank 1.

From the above description it is seen that applicant has provided a verysimple and ei'licient spraying device. It will be noted that, owing tothe fact that the barrel 5 extends-at right angles to the tank 1., thatwhen the sprayer is laid down, the same will remain in upright position.In sprayers ot' the prior art having` a pump barrel and air chamberthereon, said barrel was placed with its parallel to the axis ot thetank so that when the sprayer was laid down it would roll over .on thetank until the pump barrelcor valve part struck the supportingsurfacerlhe barrel 3 is conveniently -se cured to the tank l andthenozzle'is con veniently secured to the top of the barrel 3 by soldering,or otherwise, so that the parts are all held inA convenient and rigidrelation. j The structure of the nozzle and operating means is quitesimple; l All of the parts can be easily and inexpensivelyy made andwhen assembled the sprayer 'Works `very efliciently an-d involves notroublefor maintenance. The sprayer Ahas been amply demonstrated inactual practice and found to be lvery successful and efficient. The sameis being commercially made and sold and is meeting with much success.

It will, of course, be understood, that various changes may be made inthe form, details, arrangement and proportions of the parts withoutdeparting from the scope of applicantis invention, which, generallystated, consists in a device capable of carrying out the objects aboveset forth, such as shown and described and defined in the appendedclaims.

l/Vhat is claimed is:

l. A liquid spraying device forming a rigid unit having in combination,a liquid containing tank, an air pump comprising a barrel rigidlysecured to the top ot said tank, said barrel having a compressed airchamber in its front portion, a hollow cylindrical member secured to andextendinglongitudinally of said barrel at its top and front end andhaving an opening communicating with said air chamber, said memberhaving an annular recess in its forward end, a tube communicating withsaid recess and extending to the bottom of said tank, a closing membertting into the outer end of said member and having a hollow interior anda central discharge aperture therethrough, said closing member formingwith said recess an annular chamber and having an exterior channelforming with said member a passage leading from said annular chamber tothe interior of said closed member, a plunger extending through saidcylindrical member and extending into the interior of said closingmember, the front end of said plunger forming a valve cooperating withsaid discharge aperture, means for holding said plunger inV position toclose said discharge aperture and means for moving the same to open saiddischarge aperture.

2. A liquid spraying device forming a rigid unit having in combination,means for containing liquid to be sprayed, means for forcing liquidthrough a nozzle supply tube, a nozzle comprising a cylindrical barrel,apertured at one end and having its other end open, said barrel having aportion of increased diameter of bore adjacent its open end andhaving'adjacent said portion, a flanged open ended cap having a sleevedisposed in said barrel engaging said threads andv closing the endofvsai'd barrel,

said' chamber and the interior of said sleeve,

said cap having. a small central vdischarge aperturein its 'front end, a.plunger valve co-operating with saidaperture insaid 'cap and extending.through the" ap'erturedlnd of said barrel, a spring pressing saidplunger valve to closed position, and means for withdrawing said plungervalve and opening said aperture in said cap to permit the discharge ofliquid.

3. A liquid spraying device having in combination, a liquid containingtank, an air pump comprising a barrel secured to the top of said tankand extending substantially `at right angles to the axis of said tank,said barrel having a forward portion forming a compressed air chamber, aspraying nozzle secured on top of and extending longitudinally of saidbarrel at the front end thereof, means for controlling the discharge ofliquid through said nozzle, and a supporting foot extendingsubstantially tangent to the front of said tank and connected to the endof said barrel.

4. A sprayer device comprising a tank and a barrel section securedthereto, said section having removably secured therein a cylindricalmember with a closed end, said end having an aperture therein and saidmember carrying a spring-pressed check valve normally closing saidaperture, said check valve opening inwardly of said barrel' section,said member projecting from said section and having tightly secured onits exterior a second barrel section, 'and a gasket ring surroundingsaid cylindrical inember and engaged -by the adjacent ends of saidbarrel section.

5. A liquid spraying device having in combination, a liquid supplyreceptacle, means for placing liquid therein underv pressure, a nozzlecomprising a cylindrical barrel, a cylindrical hollow member having anopen rear end fitting in the end of said cylindrical barrel closing theend thereof and provided with a small discharge aperture in its forwardportion, said cylindrical barrel and said member being spaced to providean annular chamber communieating with said liquid in said receptacle,said cylindrical hollow member having a flat exterior portion formingwith said barrel a passage leading from said annular chamber to its rearend and interior and means for supplying air underk pressure to saidcylindrical barrel whereby the liquid from said receptacle is forcedinto said annular chamber through said passage around the end of andinto said cylindrical hollovi7 lrnember and is forced out through saiddischarge aperture and sprayed by said air under pressure.

6. A spraying device comprising a tank, a barrel member of relativesmall diameter rigidly secured to the top of said tank,l said barrelhaving a front section Vinteriorly threaded at its rear end, acup-shaped sleeve screwed therein forming a partition in said barrel andcarrying a forwardly opening check valve, said sleeve being exterior-lythreaded and projectngkat the rear end of said section, a rear sectionof said barrel screwed onto said sleeve and a gasket snrrounding saidsleeve and clamped between said sections.

7 The structure set forth in claim 6, said sec-tions having out-turnedflanges thereon at their adjacent ends between which said gasket isdisposed.

In testimony whereof I ailix my signa ture. 4

HENRY E. BRANDT,

